12/4=15/n

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Solution for 12/4=15/n equation: 



12/4=15/n

We move all terms to the left:

12/4-(15/n)=0



Domain of the equation: n)!=0

n!=0/1

n!=0

n∈R



We add all the numbers together, and all the variables

-(+15/n)+12/4=0

We add all the numbers together, and all the variables

-(+15/n)+3=0

We get rid of parentheses

-15/n+3=0

We multiply all the terms by the denominator


3*n-15=0

We add all the numbers together, and all the variables

3n-15=0

We move all terms containing n to the left, all other terms to the right

3n=15

n=15/3

n=5

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